aidezz moi please ! c'est urgent :/ resoudre ces equation en choisisant la methode appropriée: 1) 4(x-5)(2x+3)=0 2)(x-1)(2x+3)+4x(x-1)=0

1) 4(x-5)(2x+3)=0

x+5 =0                                2x+3 =0
x = -5                                    2x= -3
                                               x = -3/2 


2)(x-1)(2x+3)+4x(x-1)=0
(x-1)(2x+3+4x) =0
(x-1)(6x+3) =0
3(x-1)(2x+1) =0

x-1 =0                            2x+1 =0
x = 1                               2x =-1         donc  x = -1/2